body {
  padding-top: 70px;
}

.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #fff;
  z-index: 9999;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

.lds-spinner {
  display: inline-block;
  position: relative;
  width: 80px;
  height: 80px;
}
.lds-spinner div {
  -webkit-transform-origin: 40px 40px;
          transform-origin: 40px 40px;
  -webkit-animation: lds-spinner 1.2s linear infinite;
          animation: lds-spinner 1.2s linear infinite;
}
.lds-spinner div:after {
  content: " ";
  display: block;
  position: absolute;
  top: 3px;
  left: 37px;
  width: 6px;
  height: 18px;
  border-radius: 20%;
  background: #3498db;
}
.lds-spinner div:nth-child(1) {
  -webkit-transform: rotate(0deg);
          transform: rotate(0deg);
  -webkit-animation-delay: -1.1s;
          animation-delay: -1.1s;
}
.lds-spinner div:nth-child(2) {
  -webkit-transform: rotate(30deg);
          transform: rotate(30deg);
  -webkit-animation-delay: -1s;
          animation-delay: -1s;
}
.lds-spinner div:nth-child(3) {
  -webkit-transform: rotate(60deg);
          transform: rotate(60deg);
  -webkit-animation-delay: -0.9s;
          animation-delay: -0.9s;
}
.lds-spinner div:nth-child(4) {
  -webkit-transform: rotate(90deg);
          transform: rotate(90deg);
  -webkit-animation-delay: -0.8s;
          animation-delay: -0.8s;
}
.lds-spinner div:nth-child(5) {
  -webkit-transform: rotate(120deg);
          transform: rotate(120deg);
  -webkit-animation-delay: -0.7s;
          animation-delay: -0.7s;
}
.lds-spinner div:nth-child(6) {
  -webkit-transform: rotate(150deg);
          transform: rotate(150deg);
  -webkit-animation-delay: -0.6s;
          animation-delay: -0.6s;
}
.lds-spinner div:nth-child(7) {
  -webkit-transform: rotate(180deg);
          transform: rotate(180deg);
  -webkit-animation-delay: -0.5s;
          animation-delay: -0.5s;
}
.lds-spinner div:nth-child(8) {
  -webkit-transform: rotate(210deg);
          transform: rotate(210deg);
  -webkit-animation-delay: -0.4s;
          animation-delay: -0.4s;
}
.lds-spinner div:nth-child(9) {
  -webkit-transform: rotate(240deg);
          transform: rotate(240deg);
  -webkit-animation-delay: -0.3s;
          animation-delay: -0.3s;
}
.lds-spinner div:nth-child(10) {
  -webkit-transform: rotate(270deg);
          transform: rotate(270deg);
  -webkit-animation-delay: -0.2s;
          animation-delay: -0.2s;
}
.lds-spinner div:nth-child(11) {
  -webkit-transform: rotate(300deg);
          transform: rotate(300deg);
  -webkit-animation-delay: -0.1s;
          animation-delay: -0.1s;
}
.lds-spinner div:nth-child(12) {
  -webkit-transform: rotate(330deg);
          transform: rotate(330deg);
  -webkit-animation-delay: 0s;
          animation-delay: 0s;
}

@-webkit-keyframes lds-spinner {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

@keyframes lds-spinner {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
.downloads-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  min-height: 600px;
}
.downloads-container h1 {
  text-align: center;
  margin-bottom: 40px;
  color: #333;
  font-weight: 600;
}

.downloads-layout {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 30px;
}
@media (max-width: 767px) {
  .downloads-layout {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
  }
}

.downloads-nav {
  width: 220px;
  background: white;
  border-radius: 8px;
  -webkit-box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
          box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  padding: 15px 0;
  max-height: 240px;
}
@media (max-width: 767px) {
  .downloads-nav {
    width: 100%;
  }
}
.downloads-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.downloads-nav ul li {
  margin-bottom: 5px;
  -webkit-transition: all 0.3s;
  transition: all 0.3s;
}
.downloads-nav ul li a {
  display: block;
  padding: 12px 20px;
  color: #333;
  text-decoration: none;
  -webkit-transition: all 0.3s;
  transition: all 0.3s;
  font-weight: 500;
  border-left: 3px solid transparent;
}
.downloads-nav ul li a:hover {
  background: rgba(52, 152, 219, 0.1);
  color: #3498db;
  border-left-color: rgba(52, 152, 219, 0.5);
}
.downloads-nav ul li a.active {
  background: #3498db;
  color: white;
}
.downloads-nav ul li.active a {
  background: #3498db;
  color: white;
}

.downloads-content {
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
  background: white;
  border-radius: 8px;
  -webkit-box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
          box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  padding: 20px;
}
@media (max-width: 767px) {
  .downloads-content {
    width: 100%;
  }
}

.downloads-table {
  overflow-x: auto;
}
.downloads-table table {
  width: 100%;
  border-collapse: collapse;
}
.downloads-table table th,
.downloads-table table td {
  padding: 15px;
  text-align: left;
  border-bottom: 1px solid #dee2e6;
}
@media (max-width: 767px) {
  .downloads-table table th,
  .downloads-table table td {
    padding: 10px;
  }
}
.downloads-table table th {
  background: #f5f5f5;
  font-weight: 600;
  color: #333;
  white-space: nowrap;
}
.downloads-table table tr:nth-child(even) {
  background: #f9f9f9;
}
.downloads-table table tr:hover {
  background: rgba(52, 152, 219, 0.05);
}
.downloads-table table .download-btn {
  display: inline-block;
  padding: 8px 16px;
  background: #3498db;
  color: white;
  text-decoration: none;
  border-radius: 4px;
  font-size: 14px;
  -webkit-transition: all 0.3s;
  transition: all 0.3s;
}
.downloads-table table .download-btn:hover {
  background: #2980b9;
  -webkit-transform: translateY(-2px);
          transform: translateY(-2px);
  -webkit-box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
          box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

@media (max-width: 767px) {
  .downloads-container {
    padding: 30px 15px;
  }
  .downloads-table table {
    display: block;
    overflow-x: auto;
  }
  .downloads-table table thead {
    display: none;
  }
  .downloads-table table tbody,
  .downloads-table table tr,
  .downloads-table table td {
    display: block;
    width: 100%;
  }
  .downloads-table table tr {
    margin-bottom: 15px;
    border: 1px solid #dee2e6;
    border-radius: 5px;
    overflow: hidden;
  }
  .downloads-table table td {
    text-align: center;
    position: relative;
    border: none;
    border-bottom: 1px solid #dee2e6;
  }
  .downloads-table table td:before {
    content: attr(data-label);
    position: absolute;
    left: 15px;
    top: 50%;
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
    font-weight: 600;
    color: #333;
  }
  .downloads-table table td:last-child {
    border-bottom: none;
  }
}
.search-filters {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 15px;
  margin-bottom: 20px;
}

.filter-group {
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
}

.filter-select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  background-color: #fff;
}